.pwd-01{ background-position: 0 0; width: 12px; height: 14px; } 
.pwd-02{ background-position: 0 -64px; width: 13px; height: 13px; } 
.pwd-03{ background-position: 0 -127px; width: 12px; height: 12px; }
.pwd-04{ background-position: 0 -189px; width: 12px; height: 12px; } 